Dishwashing apparatus



Sept. s, 1925.

E. WALKER DISHWASHI NG APPARATUS F'iled Sept. 22, 1924 l jvwemtozPatented Sept. 8, 1925.

UNITED STATES EDWARD WALKER, OF GRANTWOO'D, NEW JERSEY.

DISHWASHING APPARATUS.

Application led September 22, 1924. Serial No. 739,082.

To all 'whom t may concern: Be it known that I, EDWARD VALKER, citizenyof the United States, residing at Grantwood, in the county of Bergenand State of New Jersey, have invented certain new and usefullmprovements in Dishwashing Apparatus, of which the following is aspecification. l

My invention relates to an apparatus and method for the washing ofvarious household articlesand is especially adapted for the washing ofdishes.

The invention has for its object to provide a method whereby water maybe entrained in an `air current in the form of a spray which spray maybe properly applied to the articles to be cleaned.

It also has for its object to provide mechanical means which will serveto deviate the escaping current outwards and direct it against thearticles to be washed.

My invention further has for an object to furnish rotating air outletnozzles which rotating nozzles will serve to discharge the spraysuccessively in all directions thus making anefficient spray adapted toreach all the articles vto be washed.

Further my invention has for its object to provide a bottom which slantsdownwards and towards the air discharge which will in combination with adownwardv directed air current cause the water to travel upwards awayfrom the air discharge in consecutive waves the crests of which are.broken up in a' spray by the air current.

Finally my invention provides for the placing of the dishes edgewisearound the air discharge in a fan like arrangement so that the spacebetween the dishes will increase with the distance from the airdischarge where the spray action naturally is decreased.

In the drawing z- Figures l and 2 show in a diagrammatical way thewashing of dishes and table ware.

Figure 3 is a horizontal section of the dish washer showing the`eccentric lfan like arrangement whereby diferentif size plates can beaccommodated with the least loss of space.

Figures 4, 5, and 6 show dierent types of air discharge nozzles.

Of these nozzles Figure 4 shows a stationary type supplied with aconical deector.

Figure 5 shows a nozzle type adapted to rotate in the space below thesupporting dish shelf.

Figure 6 shows a nozzle provided with a fan adapted to rotate in thespray below the supporting dish shelf.

Referring to the drawing in which like reference characters designatecorresponding parts,'1 designates a washer which is adapted to washdishes and tableware.

The dish washer shown has one lower part ,2 adapted to retain water andan upper part or cover 8 which lits tight on the lower part.

On top of the cover an electrically driven fan 4, is mounted.

The fan intake 5 is supplied with a water separator 6 which prevents thesucking of water through the fan.

The bottom part 2 of the washer has the bottom slanting towards the airdischarge and the bottom is also supplied with a cup like depression 7directly below the air discharge into which depression the water willcontinuously iow back during the washing operation.

A shelf 8 is shown supportingthe plates 10, saucers 10 and articles oftableware 102.

The air discharge pipe 11 is connected at its upper end to the fan 4 andreceives therefrom a blast of air sufficient to agitate the water in thebottom of the washer, said pipe being provided close to its end with aconically. shaped deflector 12 which aids in spraying the water that isagitated by the blast of air from the pipe 11.

Figure 5 shows the detail construction of a rotating nozzle the airdischarge taking place downwards through the opening 13 as well aslaterally through the side openings 14 which direct the discharge so asto cause the nozzle to rotate in the ball bearing 15 which is providedon the air discharge.

The Figure 6 4shows a nozzle 16 provided with a rotating fan 17 which isalso suspended on a ball bearing 15 and rotated by means of vanes 18which are placed inside the air discharge.

The mode of procedure is as follows.

After the articles to be cleaned have been properly placed and an amountof hot water just in excess of the capacity of the cup like depressionhas been poured into the bottom part 2, the washer is closed and the fan4 is started.

The lower end of the air discharge pipe 1l is immersed to the .depth ofabout one inch in the Water so that when said water is agitated the endof said pipe will be above said surface and thus the maximum spray andswash effect will take place.

It isalso to be noted that the shape kof the bottom of the washer doescause the water agitated by the impact of the air discharge to swashback and forth forming Waves from the crests of which waves a spray isblown by the air current.

The cone shaped de lector with which the air discharge is provided formstogether with the water itself and the slanting bottom of the washerv apassage way through which the air current must escape outwards and it isplain that the narrower this passage Way becomes, the greater the airvelocity and also the spray action.

Therefore it is of importance to place the air discharge at such adistance above the water surface that the maximum spray will occur.

I do not desire to be understood as limiting myself to the specificdetails of construction and arrangement as it is manifest thatvariations and modifications may be made in the adaptationsqof thedevice to various conditions, without departing from the spirit andscope of my invention.

I claim l. The herein described machine for Washing dishes, including areceptacle for water, means forblowing air against the surface of thewater so as to agitate the Water in waves, and means for supportingdishes above and around the air discharge, the water being blown in aspray between the dishes.

2. The herein described machine 'for washing dishes, including areceptacle for water, means for blowing air against the surface of thewater and causing a spray, a dish support, and means for delecting thespray between the dishes.

EDWARD WALKER.

